Home / 28,989.36-43,498.62-21,608.64

Finding the Fourth Proportional to 28,989.36, 43,498.62 and 21,608.64

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Solution

The fourth proportional to 28,989.36, 43,498.62 and 21,608.64 is: 32,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.36 : 43,498.62 = 21,608.64 : x
  2. Step 2: Convert to fraction form
    28,989.36/43,498.62 = 21,608.64/x
  3. Step 3: Cross multiply
    28,989.36x = 43,498.62 × 21,608.64
  4. Step 4: Simplify right side
    28,989.36x = 939,946,020.08
  5. Step 5: Solve for x
    x = 939,946,020.08/28,989.36
  6. Step 6: Final answer
    x = 32,423.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.